--- a/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Thu May 27 18:01:56 2010 -0700
+++ b/hotspot/src/cpu/x86/vm/c1_Runtime1_x86.cpp	Thu May 27 22:01:55 2010 -0700
@@ -1581,7 +1581,6 @@
           __ should_not_reach_here();
           break;
         }
-
         __ push(rax);
         __ push(rdx);
 
@@ -1605,8 +1604,8 @@
 
         // Can we store original value in the thread's buffer?
 
-        LP64_ONLY(__ movslq(tmp, queue_index);)
 #ifdef _LP64
+        __ movslq(tmp, queue_index);
         __ cmpq(tmp, 0);
 #else
         __ cmpl(queue_index, 0);
@@ -1628,13 +1627,33 @@
         __ jmp(done);
 
         __ bind(runtime);
+        __ push(rcx);
+#ifdef _LP64
+        __ push(r8);
+        __ push(r9);
+        __ push(r10);
+        __ push(r11);
+#  ifndef _WIN64
+        __ push(rdi);
+        __ push(rsi);
+#  endif
+#endif
         // load the pre-value
-        __ push(rcx);
         f.load_argument(0, rcx);
         __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_pre), rcx, thread);
+#ifdef _LP64
+#  ifndef _WIN64
+        __ pop(rsi);
+        __ pop(rdi);
+#  endif
+        __ pop(r11);
+        __ pop(r10);
+        __ pop(r9);
+        __ pop(r8);
+#endif
         __ pop(rcx);
+        __ bind(done);
 
-        __ bind(done);
         __ pop(rdx);
         __ pop(rax);
       }
@@ -1664,13 +1683,13 @@
                                         PtrQueue::byte_offset_of_buf()));
 
         __ push(rax);
-        __ push(rdx);
+        __ push(rcx);
 
         NOT_LP64(__ get_thread(thread);)
         ExternalAddress cardtable((address)ct->byte_map_base);
         assert(sizeof(*ct->byte_map_base) == sizeof(jbyte), "adjust this code");
 
-        const Register card_addr = rdx;
+        const Register card_addr = rcx;
 #ifdef _LP64
         const Register tmp = rscratch1;
         f.load_argument(0, card_addr);
@@ -1679,7 +1698,7 @@
         // get the address of the card
         __ addq(card_addr, tmp);
 #else
-        const Register card_index = rdx;
+        const Register card_index = rcx;
         f.load_argument(0, card_index);
         __ shrl(card_index, CardTableModRefBS::card_shift);
 
@@ -1716,12 +1735,32 @@
         __ jmp(done);
 
         __ bind(runtime);
-        NOT_LP64(__ push(rcx);)
+        __ push(rdx);
+#ifdef _LP64
+        __ push(r8);
+        __ push(r9);
+        __ push(r10);
+        __ push(r11);
+#  ifndef _WIN64
+        __ push(rdi);
+        __ push(rsi);
+#  endif
+#endif
         __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::g1_wb_post), card_addr, thread);
-        NOT_LP64(__ pop(rcx);)
+#ifdef _LP64
+#  ifndef _WIN64
+        __ pop(rsi);
+        __ pop(rdi);
+#  endif
+        __ pop(r11);
+        __ pop(r10);
+        __ pop(r9);
+        __ pop(r8);
+#endif
+        __ pop(rdx);
+        __ bind(done);
 
-        __ bind(done);
-        __ pop(rdx);
+        __ pop(rcx);
         __ pop(rax);
 
       }